code: def add(self, token, action, change_seq):
      if action != "original" and not self._is_changed:
          self._is_changed = True
      self.change_logs.append(
          Token(token=token, action=action, change_seq=change_seq)
      )
  
file_path: nlpaug/nlpaug/util/doc/change_log.py
imports: from nlpaug.util.doc.token import Token
label_desc: Use image node_id 2 for calling the ChangeLog obj's underlying member method code with example usage: obj.add(token, action, change_seq) without return types